type InfoType = {
  name: string,
  age: number
}

let info1: InfoType = {
  name: "why",
  age: 18
}

let info2 = {
  name: "why",
  age: 18
}

let info3: {
  name: string,
  age: number,
  height: number
} = {
  name: "why",
  age: 18,
  height: 1.88
}

console.log(info3.name)
console.log(info3.age)

export { }